defense mechanism of the gingiva ppt

Question 1

thus protect both hard & soft tissues & affect the aggregation & attachment of streptococciLysis of some bacterial species by hydrolysis of the linkage in the bact. Cell wall. Leads to destabilization of bacterial cell membrane.

Answer 1

Mucins Lubrication :

Question 2

remove H2O2 produced by m.o. and reduce acid production in dental plaque

Answer 2

Peroxidase

Question 3

inhibit bacterial adherence

Answer 3

sIgA :

Question 4

maintain the surface integrity of enamel

Answer 4

Histatins:

Question 5

inhibit the protease produced by m.o.

Answer 5

Cystatin:

Question 6

inhibit the activity of collagen degrading enzyme & bactericidal to strains of lactobacillus and streptococci by prevent the accumulation of lysine & glutamic acid essential for bacterial growth.

Answer 6

Enzymes

Question 7

bactericidal for actinobacillus & inhibit the attachment of actinomysis to hydroxyapatite.

Answer 7

Myeloperoxidase:

Question 8

bicarbonate and phosphate

Answer 8

Buffering:

Question 9

maintain the tooth integrity

Answer 9

minerals:

Question 10

cleansing

Answer 10

Fluid flow: